Weekly bulletin, 12 to 18 October 2026. Published Monday 19 October 2026.
Petrol prices in Wales: down 0.7p this week to 172.7p
Between Monday 12 October 2026 and Sunday 18 October 2026, the average price of unleaded across 196 filling stations in Wales fell 0.7p to 172.7p a litre, while diesel fell 0.7p to 197.9p.
Cheapest and most expensive
On Sunday 18 October 2026, prices updated within 30 days, judged against their neighbours.
The last 30 days
Daily averages, in pence per litre. Right-click the image to save it; it is free to publish with a link.
Towns in Wales where unleaded moved most
Towns with at least three filling stations, first to last day of the week.
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The weekly change compares the same 112 filling stations with an unleaded price on both days, so a station dropping out of the figures does not move it.
230 of the 485 stations seen during the week changed at least one price.
The cheapest unleaded in Wales on Sunday 18 October 2026 was 165.7p at Victoria Filling Station, Aberdaugleddau (SA73 2NA); the most expensive was 198.9p at Hendrewenfillingstation, Tregaron (SY25 6QU), a gap of 33.2p, or £16.60 on a 50-litre tank.
The cheapest diesel was 190.9p at Milford Haven Superstore - Petrol Filling Station, Milford Haven (SA73 3AU).
Across the UK, unleaded was down 0.8p over the same week, at 172.7p, which puts Wales level with the national average.
Among the towns of Wales, unleaded fell most in Blackwood (down 1.7p to 168.4p), Wrexham (down 1.6p to 171.7p), Ammanford (down 1.3p to 168.9p).
"Drivers in Wales paid 0.7p less for a litre of unleaded this week. On a 50-litre tank, that is £0.35 less than a week earlier. The gap between the cheapest and the dearest forecourt in Wales is 33.2p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk.
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Petrol prices in Wales: down 0.7p this week to 172.7p Between Monday 12 October 2026 and Sunday 18 October 2026, the average price of unleaded across 196 filling stations in Wales fell 0.7p to 172.7p a litre, while diesel fell 0.7p to 197.9p. The weekly change compares the same 112 filling stations with an unleaded price on both days, so a station dropping out of the figures does not move it. 230 of the 485 stations seen during the week changed at least one price. The cheapest unleaded in Wales on Sunday 18 October 2026 was 165.7p at Victoria Filling Station, Aberdaugleddau (SA73 2NA); the most expensive was 198.9p at Hendrewenfillingstation, Tregaron (SY25 6QU), a gap of 33.2p, or £16.60 on a 50-litre tank. The cheapest diesel was 190.9p at Milford Haven Superstore - Petrol Filling Station, Milford Haven (SA73 3AU). Across the UK, unleaded was down 0.8p over the same week, at 172.7p, which puts Wales level with the national average. Among the towns of Wales, unleaded fell most in Blackwood (down 1.7p to 168.4p), Wrexham (down 1.6p to 171.7p), Ammanford (down 1.3p to 168.9p). "Drivers in Wales paid 0.7p less for a litre of unleaded this week. On a 50-litre tank, that is £0.35 less than a week earlier. The gap between the cheapest and the dearest forecourt in Wales is 33.2p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk. Source: fuelpricetoday.co.uk, weekly bulletin for Wales, 12 to 18 October 2026. https://fuelpricetoday.co.uk/press/2026-W42/wales Prices are pence per litre, computed from the government's Fuel Finder open data. Free to use with a link to the source.
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- Every station (CSV)
Name, brand, postcode, coordinates, unleaded and diesel on 12 Oct and 18 Oct.
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All the figures on this page, with the 30-day series.
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Terms of use
Free to use, quote and publish, including the chart and the data, with a link to https://fuelpricetoday.co.uk/press/2026-W42/wales or a credit to fuelpricetoday.co.uk. Prices are computed from the Fuel Finder open data published by the Department for Energy Security and Net Zero under the Open Government Licence v3.0. Questions, a figure for another area, or a quote: contact@fuelpricetoday.co.uk.
How the figures are computed
Each average is the mean of the prices changed in the last 7 days at the filling stations of Wales, motorway services left out and prices more than 25p from the day's median discarded. The cheapest and most expensive stations are judged against the stations within 10 km, so that a typing error cannot top the list. The week runs from Monday to Sunday. Details on how this site works.